ASTROSAT CZTI

Data Quality Report

Orbit 41447

Creation date: 2024-06-27T22:29:11.317495
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1T05_100T01_9000005668_41447cztM0_level2.fits modeM0/AS1T05_100T01_9000005668_41447cztM0_level2_quad_clean.evt
Size (bytes)310,423,68082,134,720
Size296.0 MB 78.3 MB
Events in quadrant A2,700,311559,168
Events in quadrant B2,584,313560,893
Events in quadrant C3,039,474520,212
Events in quadrant D2,782,099501,208

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0390
B0390
C0390
D0400

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109203
B0110472
C0120512
D0116902

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4930180.365112%
B49301563.164300%
C49302825.720081%
D4930661.338742%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7052 4931 7 7 0.10% 0.14%
B 7052 4931 127 127 1.80% 2.58%
C 7052 4931 283 283 4.01% 5.74%
D 7052 4931 59 59 0.84% 1.20%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 490570 4298.73 552 541 114.0
A 13 248 59529 517.47 552 541 114.0
A 2 79 14694 124.16 552 541 114.0
B 0 186 370327 3537.28 538 524 104.5
B 0 190 71755 681.35 538 524 104.5
B 12 111 13323 122.43 538 524 104.5
C 0 10 797034 6618.71 516 520 120.3
C 15 214 200001 1657.61 516 520 120.3
C 3 233 25815 210.19 516 520 120.3
D 13 249 267669 2059.13 530 513 129.7
D 5 222 232915 1791.26 530 513 129.7
D 1 47 128978 990.16 530 513 129.7

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter